For more information, prices, and detailed day-by-day Costa Diadema itineraries in September 2026, please click one of the scheduled Costa Diadema sailing dates below.
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Cruise and Land Value Offers that combine with this sailing.
International Callers
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Please note that all prices on our website are in US dollars, and travel purchases must be completed with a major credit card. Unless you are considering one of our custom cruise itineraries, certain cruise lines prohibit US-based travel agencies from selling to non-US residents.
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Pricing Terms and Conditions
Unless otherwise indicated above, all cruise rates are per person, double occupancy, cruise-only without airfare, do not include government taxes and fees and quoted in in U.S. dollars. Ponant Cruises rates are based on foreign currencies that are converted to USD based on today's exchange rates. Rates are subject to availability, can vary by ship and sailing date, and for new bookings only. Fares are capacity controlled, and subject to change without notice. Port charges are included. Prices do not include additional service charges; Travel Insurance; and applicable government taxes & fees unless otherwise specified in the offer. Surcharges and fees implemented by a travel supplier, even after the reservation is made, will be the sole responsibility of each traveler and is due and payable in full prior to departure. Certain promotions which may include amenities like shipboard credits, pre-paid gratuities, drink packages or other packages may be available by category, room type or fare code and may not be combinable with other promotions. For any questions, please consult one of our cruise specialists for applicability and verification. All prices, inclusions & promotions listed on the web-site are current at the time they we published and are subject to change without advance notice. Arrivia, Inc., its subsidiaries, and partners are not responsible for last minute changes to price or itinerary by cruise lines, or for any errors or omissions in the content of this website.
